[ReM]

I would scrap Monty as well; he is pretty famous but a good, but not a great general. His biggest feat imho is restoring confidence in 8th army which was in shambles after being embarassed by Rommel just before el Alamein.
Although he did win at Alamein, Sicily and later in France after D-Day, he always did it with massive superiority in everything that mattered on the battlefield.
He will always be associated with the disastrous Market Garden operation which too ambitious and was indeed: a bridge too far; not due to lack of trying by the Allies but because of a rapid conversion from the Germans from fleeing to fighting.
The best general would be Von Manstein who was resonsible for most of the planning for Plan Gelb the invasion of France in 1940, an adaptation of the original 'sichelschnitt' plan of 1914.
He truly made a name for himself on the Eastern front after Stalingrad where he mixed a withdrawal with sudden offensives called ''schlagen aus der Nachhand (mobile defense), retaking Kharkov and saving the Eastern front from a total collapse.